nano_send

THE RISK

Critical Risk

Why nano_send needs a policy

This tool directly transfers Nano cryptocurrency from one account to another. This is an irreversible financial transaction — once Nano is sent on the network, it cannot be recalled. Misuse by an AI agent could result in unauthorized or erroneous transfer of funds, making this critical severity under the Financial category.

From the tool's definition "Send a specified amount of nano units from a predefined Nano account to a destination Nano account"

Documented attack patterns abuse exactly the kind of access nano_send gives an agent:

POLICY

How to control nano_send

PolicyLayer is an MCP gateway — it sits between your AI agents and Nano Currency MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for nano_send:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "nano_send": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

Any call to nano_send is blocked until a human approves it. The rest of the server keeps working.

Create a free account and register Nano Currency MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

GATE THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Nano Currency MCP Server tools

Financial raw_send Send a specified amount of raw units from a predefined Nano account to a destination Nano Financial x402_payment_signature_exact_scheme_create Create the PAYMENT-SIGNATURE header for Nano exact scheme x402 transaction. Read block_info Retrieve detailed information about a specific Nano block. Read nano_account_info Retrieve detailed information about a specific Nano account, including balance (in nano an Read nano_my_account_info Retrieve detailed information about my Nano account, including balance (in nano and raw un

All 6 Nano Currency MCP Server tools →

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Go deeper

Critical-risk tools in Nano Currency MCP Server → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Human-in-the-loop → When a tool call should wait for a person — and when policy can decide alone.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
How to Add Spending Controls to Any MCP Agent →
Rate Limiting MCP Tool Calls: A Practical Guide →

FAQ

Questions about nano_send

What does the nano_send tool do? +

Send a specified amount of nano units from a predefined Nano account to a destination Nano account. It is categorised as a Financial tool in the Nano Currency MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on nano_send? +

Register the Nano Currency MCP Server MCP server in PolicyLayer and add a rule for nano_send: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Nano Currency MCP Server. Nothing to install.

What risk level is nano_send? +

nano_send is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit nano_send? +

Yes. Add a rate_limit block to the nano_send rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block nano_send completely? +

Set action: deny in the PolicyLayer policy for nano_send. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides nano_send? +

nano_send is provided by the Nano Currency MCP Server MCP server (kilkelly/nano-currency-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Nano Currency MCP Server tool call.

Start from Nano Currency MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →